Grok’s paid plans start at $20/month and include up to 10 prompts every 2...

https://instaquoteapp.com/how-much-does-web-search-cost-on-the-grok-api-tools/

Grok’s paid plans start at $20/month and include up to 10 prompts every 2 hours, suitable for steady users. There’s no free trial, so you pay from day one